Well guys, i had a small radiator leak by the water neck and hose and so i replaced the thermo(w/ a 180* from autozone notthe cheap one the oem approved one) put on a new gasket w/ sealent and filled up the coolant with some 50/50mix. Well my car used to run at a constant 220 degrees and never really went much over. The guy i bought the car off of took out the computer and carbed it. It also has to switches on the inside forthe fans but dont seem to work. Well sicne replaing the thermo the car gets almost into the 250-260 zone and then the fan will kick on. and it will run around 225. I dont want this it never did this before i replaced the thermo. The thermo is in right with the point up. What could the problem be? ANd y is the fan kicking on so late ? thanks

 

Did you bleed the air out. Air pockets can cause some grief till they are out. Also if the system isn't pressurizing it will run hot. Check the cap,etc and make sure the system is tight. When it starts to cool does the recovery bottle start to fill. You could just need more coolant if the system was opened.

 

yeah i agree make sure that the air is out and the coolant tank is at proper level when cold.

 

You need to also make the fans come on earlier. You said you are running a carb. and 180* stat. Have both fans on by 190* in my opinion.

 

guys what's the best or most "proper" way to bleed the air out of the cooling system?

 

With the engine COLD, take the cap off and start her up. Slowly bring up engine rpm and slowly back it down. You will see bubbles in the coolant looking down in the rad. Top off the rad as much as possible. I have someone bring the engine off idle(approx 1000 rpm), and you will see the coolant level drop down. As that is happening refill as much as possible then install the cap. Fill the recovery bottle to the FULL COLD mark and take it for a run while keeping an eye on engine temp. Check the recovery bottle level over the next few days after driving and it sitting overnight and refill the recovery bottle until the level stays at the FULL COLD mark when you check it in the morning when it's cold. It usually takes several minor topoffs in the recovery bottle to get the level just right.